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Network-Assistance and Server Management in Adaptive Streaming on the Internet Media Lab, Corporate Research, Huawei Technologies www.huawei.com The 4 th W3C Web &TV Workshop, March 12-13, 2014 HUAWEI TECHNOLOGIES CO., LTD. Adaptive

  1. Network-Assistance and Server Management in Adaptive Streaming on the Internet Media Lab, Corporate Research, Huawei Technologies www.huawei.com The 4 th W3C Web &TV Workshop, March 12-13, 2014 HUAWEI TECHNOLOGIES CO., LTD.

  2. Adaptive Streaming over the Internet  Enable efficient and scalable delivery of multimedia services  leverage on the existing Internet infrastructure and Web technologies  client-driven (pull) nature of streaming adaptation, over HTTP  DASH (Dynamic Adaptive Streaming over HTTP)  ISO/IEC 23009 standard from early year 2012  endorsed by many industry standards and organizations, and deployed in YouTube, Netflix, Hulu …  freely available browser-based player, dash.js, leveraging W3C media source extensions for extensible, adaptive, multi-bitrate playback to a browser (e.g., IE and Chrome) Page 2 HUAWEI TECHNOLOGIES CO., LTD.

  3. Current: Client Managed DASH HTTP Requests Adaptation Request Parser Logic Monitoring Access Engine Function Segment Segment … … Media Engine Delivery Function HTTP … ... ... Responses(Segments) Segment Segment … … Client Server Network Page 3 HUAWEI TECHNOLOGIES CO., LTD.

  4. Issues with Client Managed DASH  No Network/Server involvement in adaptation management  No guaranteed and coherent QoE, when involving many clients of different types and screens from different vendors  No global optimization, in allocating network and server resources across many different clients  No Network QoS support for differentiating users and services to facilitate viable business models for network operators  No incentives for network operators to participate, to guarantee QoS Page 4 HUAWEI TECHNOLOGIES CO., LTD.

  5. Streaming Market Development  Service providers collaborate with network operators to provide best end-to-end streaming experiences “ Netflix faster on Comcast, after deal ” http://money.cnn.com/2014/ 03/11/technology/netflix- comcast/ Page 5 HUAWEI TECHNOLOGIES CO., LTD.

  6. Move “Adaptation Logic” New: Server Managed DASH from Client to Server HTTP Requests with Adaptation Parameters Adaptation Request Parser Logic Monitoring Access Engine Segment Segment Function … … Media Engine Delivery Function HTTP Responses(Segments) … ... ... Segment Segment … … Server Client Network Page 6 HUAWEI TECHNOLOGIES CO., LTD.

  7. New: Network Assisted and Server Client requests Network to provide guaranteed bitrates(GBR) Managed DASH Move “Adaptation Logic” from Client to Server HTTP Requests with Adaptation Parameters Adaptation Request Parser Logic Requesting Monitoring Access Engine GBRs Segment Segment Function … … Media Engine Delivery Function HTTP Responses(Segments) … ... ... Segment Segment … … GRB Server Client Allocation Network Page 7 HUAWEI TECHNOLOGIES CO., LTD.

  8. User Cases Supported by NA/SM QoS Differentiation in Services and Subscriptions  Different levels of subscriptions from different streaming service providers will receive  different network assistance and guarantee in network QoS Dynamic Events  Dynamic event description updates  Customized and late binding Advertisements  Just-in-time event/content description updates for dynamic Ad insertion  Forced play out  Client supplies play out evidence for Server/Network to verify before fulfilling subsequent  segment requests Spatial adaptation within full-field view  Client specifies arbitrary ROIs or view angels  Page 8 HUAWEI TECHNOLOGIES CO., LTD.

  9. What need to be Standardized @ W3C  Parameters  service description  subscriber information  network QoS information  Interfaces/Protocols  support for server adaptation management requests and responses  support for network QoS assistance request and responses Page 9 HUAWEI TECHNOLOGIES CO., LTD.

  10. 2014/3/12 Thank You www.huawei.com www.huawei.com HUAWEI TECHNOLOGIES CO., LTD.

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